If a = -3n + 2, and b = 5n - 7, what is the value of a + b, in simplest form?

2 n - 5
-8 n - 5
-3 n
2 n + 9

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

What is the average rate of change for this function for the interval from x=2 to x=4 ?